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F. W. SEABURY.

v v DENTAL VULOANIZER. I No. 299,861. Patented June 3, 1884.

WITNESSES- INVENTEIR.

, I zwf M j /Mzw Unirnn STAT S PATENT @rrrcn.

FREDERICK IV. SEABURY, OF PROVIDENCE, RHODE ISLAND.

DENTAL VULCANIZER.

ZJPI-PCIFICATION forming part of Letters Patent No. 299,861, dated June3, 1884.

Application filed March 18, 188i. (No model.)

To all whom it may concern.-

moved, and by uncovering an aperture in the Be itknown that LFREDERIOKWV. SEABURY, cover permit visual access to the interior of the of the city and county of Providence, and State I of Rhode Island, have invented certain new and useful Improvements in Dental Vulcanizers, of which the following is afull, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to apparatus for baking the molds for artificial teeth and for vulcanizing the plates-for such teeth; and the obj ect of my invention is to increase the capacity for utilizing heat, and also to simplify the general construction of the same, whereby they are rendered more compact.

To the above ends niy invent-ion consists in the peculiar and novel construction and arrangement of the vulcanizer, as hereinafter described and claimed.

In the accompanying drawing the figure illustrates a transverse vertical section 0t my improved vulcanizer.

In the said drawing, A designates thehollow body of the vulcanizer, which is supported upon the legs a. Within this body is placed the boiler 13, which is of substantially the shape shown, and which is formed with the central inverted truncated conical flue, C, the bottom of which is closed by a hinged dampenplate, c, the latter being turned upon its pivot by a hand-rod, c, which is attached at one end to the damper and extends out through the case or body A. The boiler and flue are supported by the tubes (1, which are connected at one end tothc top of the boiler'and at the other end to the top of the vulcanizer-case.

D designates the oven, which is of substan tially the shape shown, and the lower end or base of which extends somewhat downward into the upper end of the flue G. The upper end of the oven is formed with lateral flanges d, which rest upon the top of the case or body A, and thus support the oven in position, and also form the top of the vulcanizer.

E designates the cover of the oven, which is secured in position by bolts, as shown.

6 e designate presser-screws, which work through threaded sockets in the cover and press upon the flasks F in the oven.

E designates alid, which is pivoted upon the cover in such manner as to be readily reoven. G designates a valve, which is seated in the flange d of the oven, so as to close a channel, d", leading from the pipe d to the interior of the oven.

H designates a spout, the outer end of which is tightly closed by a cap, h, and which leads into a tube, I, entering the channel (1 from above. The purpose of this spout is to convey water to the boiler B.

z designates a pop or safety valve, which is seated in the upper end of the tube I.

J designates a steam-gage, the tube j of which opens into a continuous chamber, (1, formed in the flange (1 of the oven, and into which chamber the tube (2 opens.

7c designates a test-cock communicating with the chamber (2 and b designates asimilaucock communicating with the boiler 13 at or just above the mean water-level.

In using this apparatus a heater-such as a gas-burner, an oil-burner, or a similar device is set beneath the boiler B and the valve G is closed. The heat from the burner will ascend through the flue O, and will act directly upon the bottom and sides of the oven, thus baking the molds, which have been previously placed in the oven, and also heating the water, which has been previously supplied to the boiler B through the feeder H. The damper-c is opened more or less, according to the judgment of the operator. In due time the valve G is opened, and steam from the boiler B will pass through the pipes 01, chamber d and channel (1 into all constructed and arranged substantially as set forth.

2. The boiler B, having the conical flue O,

lll COlllbIllZlblOll with the oven D, having the conical flue, of the damper 0, constructed and arranged substantially as described.

6. The combination of the case A, the oven D, having the chambered an d channeled flange, the cover E, screws 6, lid E, boiler B, conical flue O, damper c, pipes d, and the valve G, the pop-Valve, gage, spout, and cooks b is, all arranged substantially ,as and for the purposes set forth.

FREDERICK XV. SEABURY.

Witnesses:

M. F. BLIGH, J. A. MILLER, Jr. 

